The companies of VEM are
characterized by an innovative culture, technical competence and great
engineering. Extensive experience in the development of drive technology and
the constant improvements of our complete system solutions and single
components ensures you the value-adding effect of your equipment as well as
economic success. Your needs are both our guidance and our challenge.
Alongside flexibility, modern technology and quality awareness, our highly
qualified employees are the key factors for our success.

Product Portfolio

VEMoDrive

VEMoDrive

Under the brand name of VEMoDRIVE, VEM supplies
controlled drive systems tailor-made to your application and consisting of
transformers, frequency converters/ power converters and electrical machines
in the performance range of 0.06 kW to 35 MW – from the low-voltage to the
medium-voltage range. The VEMoDRIVE system has the components of reputable
manufacturers to offer customers and operators all of the options for new
planning, modifying, supplementing and expanding automation and drive
equipment for each specific user. Beyond this, already existing plants can
be easily modernised and expanded upon with VEMoDRIVE. VEMoDRIVE includes
both individual controlled drives as a compact variation as well as complex
drive solutions including planning:

Compact drives

thanks to the compact setup no separate mounting space for the
frequency converter is needed

high vibration strength and high degree of protection as standard
extended lifetime

generally no output filter necessary

no motor cables only unshielded power cable needed

minimum mounting and installation costs

minimum startup costs immediately operational

The VEMoDRIVE – Compact drives are available with the same options as the
conventional setup (motor and frequency frequency converter separately). For
the engine these options primarily include: type of construction, degree of
protection, separately driven fan, brakes and encoders (the possibility of
activating the brake from the frequency converter and analyzing encoder
signals in the frequency converter can be enabled on request).

Single drives

Drive system for general applications
The
VEMoDRIVE single system offers you a drive strategy tailor-made to your
application that ranges from analysis to after-sales service depending upon
the job and application. With VEMoDRIVE Single, we supply you complete
electrical drive units consisting of VEM motors, converters and transformers
in the output range of 0.06 kW to 28 MW in low and medium voltage designs.
VEMoDRIVE Single provides innovative and intelligent drive strategies for
the widest variety of industrial applications such as pumps, ventilators,
centrifuges, conveyor belts, mills and compressors.

Technical details

Output range

0.05 – 500 kW

500 – 2800 kW

315 kW -28 MW

2 – 28 MW

Voltage range

230 - 690 V

380 – 690 V

2.3 – 6.6 kV

2.1 – 10 kV

Motor

LV

LV

MV

MV

Type

asynchronous motors in the IE2 and IE3 efficiency
classes and special motors for operating on the frequency converter

asynchronous motors for operating on the frequency
converter

asynchronous, synchronous or permanent magnet
motors for operating on the frequency converter

synchronous motors

Cooling medium

air-water

air-air / air-water

air-air / air-water

air-air / air-water

Converters

VSI

VSI

VSI

LCI

Mains connection

6/12 pulses

6/12 pulses

12/24/36 pulses

6/12/24 pulses

Output frequency

to 300 Hz

120 (300) Hz

66/75 Hz

60 Hz

Operating mode

2Q-/4Q operation

2Q-/4Q operation

2Q-/4Q operation

4Q operation

Transformer

2/3 winder

2/3 winder

2/3/4 winder

2/3/4 winder

Design

cast resin/oil

cast resin/oil

cast resin/oil

cast resin/oil

Low-voltage

You can get low-voltage motors from VEM in powers
ranging from 0.06 to 500 kW. Our main focus is energy efficiency in the
interest of your economic efficiency and our environment. As energy-saving
motors, they can already meet future standards in a lot of cases. We supply
system solutions and products according to the customer’s needs that are
tailor-made for the specific requirements and each particular industry.

Permanent-magnet synchronous motors

Driving down CO2 emissions is the greatest challenge of
our time. That makes reducing energy consumption the order of the day.
State-of-the-art speed-controlled electrical drive systems enable us to save
maximum energy. One especially energy-efficient solution is permanent-magnet
synchronous motors (PM motors).

They are exclusively operated with frequency converters and have
substantially higher efficiency levels (>IE3) than asynchronous motors as
well as improved partial load performance.

PM motors also have higher performance levels than asynchronous motors of
the same size. For example, the magnet wheel precisely following the rotary
field enables us to use PM motors on conveyor belts with several drives
running synchronously. We can provide all sizes and a wide range of
modifications to the standard range of motors.
VEM has positioned itself in the technology of permanent-magnet synchronous
motors with its two new lines of

permanent-magnet synchronous energy-saving motors

permanent-magnet synchronous high-power motors

These products combine the proven design principles of the K21R/WE1R line
with this cutting edge technology.

Marine propulsion motors

VEM motors and drives designed and intended for use in
auxiliary power units on board of oceangoing vessels live up to those
specific requirements encountered in such environments. These are, among
others, high atmospheric humidity and salt content in the air, marine splash
water and major temperature fluctuations. These motors conform to the
requirements of national and international classification societies. They
are designed according to and available with various types of protection and
type series and for operation on deck or under deck respectively.

Brake motors

With many applications, it is imperative that drives stop
reliably and fast. Here, VEM brake motors are the right choice when it comes
to lifts, hoists, cranes, winches, conveyors, or machine tools.
Energy-efficient and non-polluting, designed according to DIN EN 60034 (IEC
60072), mounting dimensions or allocation of output according to DIN 42673,
42677, or progressive, rugged and low-vibration gray cast iron design,
thermal class 155 (F) including thermal reserve, 180 (H) available as an
option, terminal boxes optionally arranged on top, on the left or on the
right, many modifications available.

Fire gas motors

Based on the proven and tested basic design and
construction of the VEM asynchronous motor series, a type series intended
for use in mechanical smoke or heat venting and extraction systems has been
developed through purposefully modified insulation systems, bearings and
connections.

Under normal conditions, fire gas motors operate as conventional fan motors
and are designed such that, in the event of fire, they should operate under
strongly increased temperatures for a certain period of time as specified by
the customer, and are then allowed to fail. These motors were subjected to
severe testing even in the design stage whereby emergencies were largely
simulated.

Slip-ring induction motors

Slip-ring induction motors are used in many industry
sectors, now as before. Owing to their properties, they have a major effect
on the effectiveness of production. VEM three-phase asynchronous motors with
slip-ring rotors combine the benefits of this drive solution with the
extraordinary know-how of VEM in terms of their manufacture.

Due to their large range of modification with regard to customer
applications, these motors can be optimally adjusted and tuned; they are
especially suited for heavy starting applications such as on instable mains
or power supply systems.

Roller table motors

Motors for power operated roller tables are special drive
elements for the rolling mill industry. Especially during operational or
conveying cycles, these are subjected to especially severe electrical and
mechanical requirements.
This is due to different modes of operation and loading conditions with
their variants of continuous operation, intermittent mode or short-time duty
as well as starting, braking or reversing cycles.
Motors of the conventional type series ARB 22 – 65 for power operated roller
tables made by VEM have proven their functionality and reliability even
under extreme ambient conditions for several decades. Based on the
experience, VEM has developed several variants of motors for power operated
roller tables geared to the conditions of the latest drive technology in
frequency converter operation. The windings of these motors are especially
adapted to the use with converters.

Water-cooled motors

The motors up to and including frame size 280 are gray cast iron with cast
integral cooling tubes, and are designed as a double-wall welded steel
structures as from frame size 315.

The terminal boxes, end shields, winding insulation, type of protection and
colour scheme conform to those of the standard design configuration.

The benefit of water cooling is reduced noise emission as compared to
surface cooled three-phase asynchronous motors of similar output and frame
size.

The waste heat of these motors is dissipated without any effect on the
environment, and their cooling principle facilitates higher output and best
vibration damping while the design of these motors remains compact.

Built-in motors

From our range of three-phase asynchronous motors with
squirrel-cage rotors, we supply wound stator core packages and rotor bodies.
Winding of thermal class 155 (F), 180 (H) is available as an option. Motors
are also available as energy-saving motors of the IE2 or IE3 design.
The tolerance for the mounting hole of the wound stator core package is as
follows:

H7<= frame size 112

P7 frame size 132

S7 >= frame size 160

After forcing onto the shaft, the rotor bodies must be overtightened and
stripped to the finished dimension of d 38, and dynamically balanced.

Single-phase motors

Single-phase motors are double-strand asynchronous motors
manufactured with a gray cast iron housing and of the same mechanical design
layout as the rugged IEC standardized motor series. These motors are thus
available in a wide range of variants, and can be operated on the
single-phase alternating voltage network.

Asynchronous generators

For the use of regenerative energy sources such as wind
power or water power, the asynchronous generator is a reliable and
cost-efficient alternative to the conventional synchronous generator that is
easy to maintain, even in small or medium-sized power generation equipment.
Depending on the case of operation, asynchronous generators are operated on
an in-house power supply system, or in parallel to an existing power supply
system respectively. By now, the previous G21R / G22R type series are
supplemented by the GE1R / GE2R type series the design of which is based on
the IE-2 type series of asynchronous motors.

Medium and High-voltage

VEM concentrates on the complex demands of selected
market segments of all industries with large-scale and special machines.
Motors and generators such as traction or special designs take advantage of
electromagnetic streamlining at low installation volumes. VEM builds
asynchronous and synchronous machines from the low-voltage range up to 13.8
kV at an output of as much as 42 MW for customised applications.

Steel and rolling mill industry

Right from the beginning we have high performance
slow-running motors for the metal industry in our delivery program. After
direct current motors having dominated for a long time, today dynamic,
high-quality three-phase motors are used: for larger torques as synchronous
machines as solid pole versions, for smaller torques as asynchronous
squirrel-cage motors. The mechanical construction is designed for high loads
in rolling mill operation; equally the electromagnetic dimensioning fulfils
the requirements of overloads, adjusting range and control dynamics. The
cooling is predominantly reliant on air-to-water heat exchangers.

Chemical, oil and gas industry

The chemical and petrochemical plants require the
employment of explosion-proof motors - dependent on the hazard potential
(zone 1 and zone 2). At present we provide the ignition protection classes
Increased Safety “e” and “n” (non sparking) (zone 2) for our low and medium
capacity motors; our motors with high to extremely high capacity, as well as
all synchronous motors, have the ignition protection class Pressurized
enclosure “p“.

Power plant technology

Conventional power stations, reliant on fossil sources of
energy, form the basic supply and reserve for the supply of electric power
and stable line operation. Keeping the environment and resources in view,
combustion and exhaust gas systems must be optimized further.
VEM motors, designed and built according to ZLM standardization, contribute
to fulfilling the requirements for monitoring carbon emissions and also air
pollution control of power plants. We supply motors, amongst other things,
for boiler feeding, main cooling-water and absorber pumps as well as for oxi-compressors,
coal mills and induced draught fans.

Renewable energy

The stable and sufficient provision of electrical energy
is decisive for the economic development of a country. Ecological aspects
have increasingly played a primary role in the selection of energy sources
for years now. The generation of energy via wind and hydro energy is
therefore acquiring an enhanced importance as an environmentally-friendly
alternative and is a secure source of energy for our future. We supply
asynchronous and synchronous generators of up to 7 MW for wind turbines, as
well as actuators for azimuth and pitch gearboxes. Hydro-electric power
plants such as Germany's largest 1060 MW pumped storage plant at Goldisthal,
Thuringia, feed electrical energy into the grid with the aid of VEM
generators.

Water technology

VEM supplies efficiency-optimized motors for driving
high-performance pumps especially designed for large flow rates for water
abstraction from artificial lakes, rivers and oceans, and for the transport
of raw, pure and industrial water in industrial, water supply and sea water
desalination plants and for large waste water treatment plants.

Shipbuilding

VEM has many years of experience in building ship motors
and it also has the licences from all of the important ship classification
companies. We build and supply motors and generators for a wide range of all
ship models. They range from the large-scale machine with a weight ranging
from 200 tonnes to the broad spectrum of accessory drives. Our scope of
delivery includes shaft, diesel and on-board electrical system generators,
propeller drives, bow thrusters and transverse rudder drives, pump drives
and drives from on-board auxiliary equipment.

Transportation

VEM has been developing and producing rail traction
machines for more than 100 years. This is a treasure trove of experience
enabling us to meet the demanding needs of the international rail vehicle
industry for high performance drive solutions. That includes highly
efficient asynchronous traction motors for electrical or diesel/electrical
locomotives, multiple units, trams and working vehicles.

Cement and mining industry

Large infrastructure projects in the “boom regions“ are
leading to a strongly growing demand for building materials such as cement,
steel and non-ferrous metals which in turn results in a constant demand for
an increase in efficiency for the development and processing procedures in
view of finite resources. The mining industry is also developing rapidly at
present, since the supply of iron and non-iron ores in sufficient quantities
is a requirement for the production of various final products.

Services

Testing Laboratory Services and Contract Manufacturing

Our high-performance testing equipment enables us to
offer comprehensive testing laboratory services such as component, type and
system tests in the capacity of a neutral partner. On request we can also
undertake special testing in the scope of product development work. Our
company has the necessary experts along with the extensive experience with
the testing requirements from various official acceptance organisations at
home and abroad (such as IbexU, Germanischer Lloyd, Det Norske Veritas,
Lloyd´s Register of Shipping, Bureau Veritas, TÜV Nord and Deutsche Bahn).
We would also be happy to draw up detailed test plans at your request.

Assembly and Start-up

It takes a lot of experience and dexterity to assemble,
start up, repair and inspect heavy industrial machines. Only seasoned
experts have the skills to manage the burgeoning complexity of these
machines and systems and handle local circumstances whilst working to tight
deadlines. Our external assembly team has proven time and again that it can
meet these demands all over the world.
We put our heads together with you to draw up flowcharts for your project,
take on local activities with qualified assembly or supervising personnel
and provide the engineering guidance for you right down to successful
start-up. Detailed reports and measuring protocols document the quality of
work done while providing a fingerprint of the condition of the machine.

Technical Services

We guide you through the statutory period of limitation
for liability for defects, providing you with selected service modules to
guarantee constant availability for your systems after start-up. Pinpoint
service agreements define the specific type and scope of service to be
performed.
Our team works closely with specific departments such as calculation and
engineering, meaning they can provide consultation in all issues regarding
the drive and associated periphery.

Supply of Spare Parts

Our team of replacement part experts are the people to
talk to when it comes to technical and commercial issues concerning the
supply and stockpiling of replacement parts. We also recommend you set up a
local store of replacement parts to ensure fast service in the event of
breakdown. We will be happy to draw up a suitable recommendation. On request
we can also maintain your replacement parts at our plant in Dresden.